Hexagonal system ferrite powder for a high density magnetic reco

Details Hexagonal system ferrite powder for a high density magnetic reco Hexagonal system ferrite powder for a high density magnetic reco

1996-08-22

1998-06-16

Zirker, Daniel

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428694B, 428694BH, 428694BA, 428900, 252 6256, 252 6263, 252 6259, 252 6258, 148100, 148105, G11B 566, G11B 570

Patent

active

057667632

ABSTRACT:
A magnetic powder is disclosed which is characterized by possessing a powder compression characteristic such that the magnetic powder, after being packed in a closed container, pressed at a load of 400 kgf/cm.sup.3, and relieved of the load, exhibits a packing density in the range of 2.5 to 3.5 g/cm.sup.3 and a geometric standard deviation of not more than 1.5 in the particle diameter distribution. A magnetic recording medium using the magnetic powder mentioned above has high packing and, consequently, secures high output, and has ample diminution of noise.

REFERENCES:
patent: 4267203 (1981-05-01), Motz et al.
patent: 4539129 (1985-09-01), Nagai et al.
patent: 4552808 (1985-11-01), Fujiyama et al.
patent: 4740419 (1988-04-01), Asai et al.
patent: 4781981 (1988-11-01), Katamoto et al.
patent: 5077146 (1991-12-01), Kubo et al.
patent: 5118575 (1992-06-01), Maekawa et al.
patent: 5576114 (1996-11-01), Kwisu et al.
"Packing Property of Barium Ferrite Powder for Use in Magnetic Recording Medium", '92 Internatioanl Conference on Colour Materials, pp. 130-131, Nov. 1992, with English abstract 3A-15, p. 203.

Affiliated with

Also associated with

Rating

Hexagonal system ferrite powder for a high density magnetic reco does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hexagonal system ferrite powder for a high density magnetic reco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hexagonal system ferrite powder for a high density magnetic reco will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1723141